Bright blue complex Caledonite crystal nicely perched on a mix of lead secondary minerals. The contrast with the matrix sets the Caledonite off very well. A very good example from the final collecting at Rowley. The matrix is a complex mix of micro minerals, this includes Phosgenite and Leadhillite seems to be in several spots, but is not confirmed. A very nice Arizona thumbnail.
A sizable and colorful old specimen of Caledonite with crystals to 4mm mixed in a massive, platy mass. The matrix is a mass of Leadhillite and altered galena and hosts areas of other Lead species including Pyromorphite, Linarite etc. While several crystals are reasonably sharp and transparent when magnified , the overall look is a "melted", opaque appearance. Leadhills is the type locale for both Leadhillite and Caledonite, this is a particularly good coverage and size.
A rich combination specimen with lots of bright well crystallized Caledonite mixed with contrasting bright blue Linarite. The matrix is mostly a highly oxidized Galena and hosts crystals of Anglesite, Cerussite and what may be massive Leadhillite along with a few unknown micros. This could be turned into several very good thumbnails since the specimen has good crystals on every side, but I like it as is.